Kourtney Kardashian, 43, reveals the supplement she 'loves' which keeps her looking youthful: 'It is our genetic key to longevity'

Kourtney Kardashian, 43-year-old reality TV star, shared on Instagram how she has been able to retain her youthful appearance even into her forties. She takes NAD+ Platinum as one of her ‘lunchtime supplements’.

 ‘Has so many benefits and I love it,’ she wrote on her Insta Stories as she insisted the post was ‘not an ad.’

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